Blend of gasoline and MTBE
• Anti-knock index must be 87 AKI or higher.
• Blend must contain not more than
15% MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform espec ially well for
winter or summer driving. During seasonal change-over, we suggest
that you fill up at busy gas stations where the seasonal adjustment is
more likely to be made in time .
0 Note
• Methanol fuels which do not meet these requirements may cause
corrosion and damage to plastic and rubber components in the fue l
system .
• Do not use fuels that fail to meet the specified criteria in this
chapter .
• If you are unab le to determine whether or not a part icular fuel
blend meets the specificat ions, ask your service station or its fuel
supplier.
• Do not use fue l for which the contents cannot be identified.
• Fuel system damage and performance problems resulting from
the use of fuels different from those specified are not the responsi-
bility of Audi and are not covered under the New Vehicle or the Emis-
sion Control System Warranties.
• If you experience a loss of fuel economy or driveab ility and perfor-
mance problems due to the use of one of these fuel blends, we
recommend that you switch to unblended fuel. •
Gasoline additives
A major concern among many auto manufacturers is carbon depos it
build-up caused by the type of gasoline you use.
Safety first
Fuel supply and filling your fuel tank
Although gasoline grades differ from one manufacturer to another,
they have certain things in common. All gasoline grades contain
substances that can cause depos its to collect on vital engine parts,
such as fuel injectors and intake valves. Although most gasoline
brands include additives to keep engine and fuel systems clean, they
are not equally effective .
Audi recommends using TOP TIER Detergent Gasoline. For more
information on TOP TIER Detergent Gasoline, please go to the official
webs ite (www.toptiergas.com).
After an extended per iod of using inadequate fuels, built-up carbo n
deposits can rob your engine of peak performance .
0 Note
Damage or malfunction due to poor fue l quality is not covered by the
Audi New Vehicle Limited Warranty. •
Fuel tank
Fuel filler neck
The fuel filler neck is located on t he right rea r side panel behind the
fuel filler flap .
If the unlocking system shou ld fail, you can still open the flap manu-
ally - for detailed instruct ions see=>
page 182 .
You can find the fue l tank capacity of your vehicle in Technical Data
:::>page 244 .
The label on the inside of the fuel filler flap tells you the correct fuel
for your vehicle. For more information about fuel specifications, see
=>
page 178 .
Your vehicle fuel tank has an on-boa rd refueling vapo r recovery
system. This feature helps to prevent fuel vapors from escaping from
the tank and pollut ing the environment while you refuel your vehicle . .,_
Vehicle care Do-it-yourself: service Technical data
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